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          <h1>Source code for cutlass.op.op</h1><div class="highlight"><pre>
<span></span><span class="c1">#################################################################################################</span>
<span class="c1">#</span>
<span class="c1"># Copyright (c) 2023 - 2023 NVIDIA CORPORATION &amp; AFFILIATES. All rights reserved.</span>
<span class="c1"># SPDX-License-Identifier: BSD-3-Clause</span>
<span class="c1">#</span>
<span class="c1"># Redistribution and use in source and binary forms, with or without</span>
<span class="c1"># modification, are permitted provided that the following conditions are met:</span>
<span class="c1">#</span>
<span class="c1"># 1. Redistributions of source code must retain the above copyright notice, this</span>
<span class="c1"># list of conditions and the following disclaimer.</span>
<span class="c1">#</span>
<span class="c1"># 2. Redistributions in binary form must reproduce the above copyright notice,</span>
<span class="c1"># this list of conditions and the following disclaimer in the documentation</span>
<span class="c1"># and/or other materials provided with the distribution.</span>
<span class="c1">#</span>
<span class="c1"># 3. Neither the name of the copyright holder nor the names of its</span>
<span class="c1"># contributors may be used to endorse or promote products derived from</span>
<span class="c1"># this software without specific prior written permission.</span>
<span class="c1">#</span>
<span class="c1"># THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS &quot;AS IS&quot;</span>
<span class="c1"># AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE</span>
<span class="c1"># IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE</span>
<span class="c1"># DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE</span>
<span class="c1"># FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL</span>
<span class="c1"># DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR</span>
<span class="c1"># SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER</span>
<span class="c1"># CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,</span>
<span class="c1"># OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE</span>
<span class="c1"># OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.</span>
<span class="c1">#</span>
<span class="c1">#################################################################################################</span>

<span class="sd">&quot;&quot;&quot;</span>
<span class="sd">Base operation used for defining high-level CUTLASS operations (e.g., GEMM, Conv2d)</span>
<span class="sd">&quot;&quot;&quot;</span>

<span class="kn">from</span> <span class="nn">bisect</span> <span class="kn">import</span> <span class="n">bisect_left</span>

<span class="kn">from</span> <span class="nn">cutlass</span> <span class="kn">import</span> <span class="n">option_registry</span>
<span class="kn">from</span> <span class="nn">cutlass.backend.utils.device</span> <span class="kn">import</span> <span class="n">device_cc</span>
<span class="kn">from</span> <span class="nn">cutlass.epilogue</span> <span class="kn">import</span> <span class="n">get_activations</span>
<span class="kn">from</span> <span class="nn">cutlass.library_defaults</span> <span class="kn">import</span> <span class="n">_generator_ccs</span>
<span class="kn">from</span> <span class="nn">cutlass.swizzle</span> <span class="kn">import</span> <span class="n">get_swizzling_functors</span>


<div class="viewcode-block" id="OperationBase"><a class="viewcode-back" href="../../../cutlass.op.html#cutlass.op.op.OperationBase">[docs]</a><span class="k">class</span> <span class="nc">OperationBase</span><span class="p">:</span>
<span class="w">    </span><span class="sd">&quot;&quot;&quot;</span>
<span class="sd">    Base operation used for defining high-level CUTLASS operations (e.g., GEMM, Conv2d)</span>
<span class="sd">    &quot;&quot;&quot;</span>

    <span class="k">def</span> <span class="fm">__init__</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">cc</span><span class="p">:</span> <span class="nb">int</span> <span class="o">=</span> <span class="kc">None</span><span class="p">,</span> <span class="n">kernel_cc</span><span class="p">:</span> <span class="nb">int</span> <span class="o">=</span> <span class="kc">None</span><span class="p">):</span>
<span class="w">        </span><span class="sd">&quot;&quot;&quot;</span>
<span class="sd">        :param cc: compute capability of device for which kernels should be compiled. For example, if running on H100, this should be set to 90</span>
<span class="sd">        :type cc: int</span>
<span class="sd">        :param kernel_cc: compute capability of kernels to generate. For example, if running on SM90, but desiring to use a CUTLASS 2.x-style Ampere kernel, this should be set to 80</span>
<span class="sd">        :type kernel_cc: int</span>
<span class="sd">        &quot;&quot;&quot;</span>
        <span class="bp">self</span><span class="o">.</span><span class="n">cc</span> <span class="o">=</span> <span class="n">cc</span> <span class="k">if</span> <span class="n">cc</span> <span class="ow">is</span> <span class="ow">not</span> <span class="kc">None</span> <span class="k">else</span> <span class="n">device_cc</span><span class="p">()</span>
        <span class="bp">self</span><span class="o">.</span><span class="n">specified_kernel_cc</span> <span class="o">=</span> <span class="n">kernel_cc</span> <span class="ow">is</span> <span class="ow">not</span> <span class="kc">None</span>
        <span class="bp">self</span><span class="o">.</span><span class="n">current_cc</span> <span class="o">=</span> <span class="n">kernel_cc</span> <span class="k">if</span> <span class="n">kernel_cc</span> <span class="ow">is</span> <span class="ow">not</span> <span class="kc">None</span> <span class="k">else</span> <span class="bp">self</span><span class="o">.</span><span class="n">_find_closest_cc</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">cc</span><span class="p">)</span>
        <span class="bp">self</span><span class="o">.</span><span class="n">tile_description</span> <span class="o">=</span> <span class="kc">None</span>

        <span class="bp">self</span><span class="o">.</span><span class="n">options</span> <span class="o">=</span> <span class="n">option_registry</span><span class="o">.</span><span class="n">options_for_cc</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">current_cc</span><span class="p">)</span>

        <span class="k">if</span> <span class="bp">self</span><span class="o">.</span><span class="n">options</span> <span class="ow">is</span> <span class="kc">None</span><span class="p">:</span>
            <span class="k">raise</span> <span class="ne">Exception</span><span class="p">(</span><span class="sa">f</span><span class="s2">&quot;Invalid or unsupported compute capability: </span><span class="si">{</span><span class="bp">self</span><span class="o">.</span><span class="n">current_cc</span><span class="si">}</span><span class="s2">&quot;</span><span class="p">)</span>

    <span class="k">def</span> <span class="nf">_find_closest_cc</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">cc</span><span class="p">:</span> <span class="nb">int</span><span class="p">)</span> <span class="o">-&gt;</span> <span class="nb">int</span><span class="p">:</span>
<span class="w">        </span><span class="sd">&quot;&quot;&quot;</span>
<span class="sd">        Returns the closest CC in _generator_ccs less than or equal to `cc`</span>

<span class="sd">        :param cc: compute capability to query</span>
<span class="sd">        :type cc: int</span>

<span class="sd">        :returns: closest CC in _generator_ccs less than or equal to `cc`</span>
<span class="sd">        :rtype: int</span>
<span class="sd">        &quot;&quot;&quot;</span>
        <span class="k">if</span> <span class="n">cc</span> <span class="ow">in</span> <span class="n">_generator_ccs</span><span class="p">:</span>
            <span class="k">return</span> <span class="n">cc</span>

        <span class="c1"># Find closest CC lower than this CC</span>
        <span class="n">idx</span> <span class="o">=</span> <span class="n">bisect_left</span><span class="p">(</span><span class="n">_generator_ccs</span><span class="p">,</span> <span class="n">cc</span><span class="p">)</span>
        <span class="k">if</span> <span class="n">idx</span> <span class="o">==</span> <span class="mi">0</span><span class="p">:</span>
            <span class="k">raise</span> <span class="ne">Exception</span><span class="p">(</span><span class="sa">f</span><span class="s1">&#39;No valid CC to fall back to for </span><span class="si">{</span><span class="n">cc</span><span class="si">}</span><span class="s1">&#39;</span><span class="p">)</span>
        <span class="k">return</span> <span class="n">_generator_ccs</span><span class="p">[</span><span class="n">idx</span><span class="o">-</span><span class="mi">1</span><span class="p">]</span>

<div class="viewcode-block" id="OperationBase.activations"><a class="viewcode-back" href="../../../cutlass.op.html#cutlass.op.op.OperationBase.activations">[docs]</a>    <span class="k">def</span> <span class="nf">activations</span><span class="p">(</span><span class="bp">self</span><span class="p">)</span> <span class="o">-&gt;</span> <span class="nb">list</span><span class="p">:</span>
<span class="w">        </span><span class="sd">&quot;&quot;&quot;</span>
<span class="sd">        Returns possible activation functions that can be used</span>

<span class="sd">        :return: list of activation functions that can be used</span>
<span class="sd">        :rtype: list</span>
<span class="sd">        &quot;&quot;&quot;</span>
        <span class="k">return</span> <span class="n">get_activations</span><span class="p">()</span></div>

<div class="viewcode-block" id="OperationBase.swizzling_functors"><a class="viewcode-back" href="../../../cutlass.op.html#cutlass.op.op.OperationBase.swizzling_functors">[docs]</a>    <span class="k">def</span> <span class="nf">swizzling_functors</span><span class="p">(</span><span class="bp">self</span><span class="p">)</span> <span class="o">-&gt;</span> <span class="nb">list</span><span class="p">:</span>
<span class="w">        </span><span class="sd">&quot;&quot;&quot;</span>
<span class="sd">        Returns possible swizzling functions that can be used</span>

<span class="sd">        :return: list of swizzling functions that can be used</span>
<span class="sd">        :rtype: list</span>
<span class="sd">        &quot;&quot;&quot;</span>
        <span class="k">return</span> <span class="n">get_swizzling_functors</span><span class="p">()</span></div>

    <span class="k">def</span> <span class="nf">_reset_options</span><span class="p">(</span><span class="bp">self</span><span class="p">,</span> <span class="n">cc</span><span class="p">:</span> <span class="nb">int</span><span class="p">):</span>
<span class="w">        </span><span class="sd">&quot;&quot;&quot;</span>
<span class="sd">        Resets the kernel options based on cc</span>

<span class="sd">        :param cc: compute capability to reset to</span>
<span class="sd">        :type cc: int</span>
<span class="sd">        &quot;&quot;&quot;</span>
        <span class="k">if</span> <span class="n">cc</span> <span class="o">!=</span> <span class="bp">self</span><span class="o">.</span><span class="n">current_cc</span><span class="p">:</span>
            <span class="k">if</span> <span class="n">cc</span> <span class="ow">not</span> <span class="ow">in</span> <span class="n">_generator_ccs</span><span class="p">:</span>
                <span class="k">raise</span> <span class="ne">Exception</span><span class="p">(</span><span class="sa">f</span><span class="s1">&#39;Invalid CC for CUTLASS kernels: </span><span class="si">{</span><span class="n">cc</span><span class="si">}</span><span class="s1">.&#39;</span><span class="p">)</span>
            <span class="bp">self</span><span class="o">.</span><span class="n">current_cc</span> <span class="o">=</span> <span class="n">cc</span>
            <span class="bp">self</span><span class="o">.</span><span class="n">options</span> <span class="o">=</span> <span class="n">option_registry</span><span class="o">.</span><span class="n">options_for_cc</span><span class="p">(</span><span class="bp">self</span><span class="o">.</span><span class="n">current_cc</span><span class="p">)</span></div>
</pre></div>
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